Toyota Prius air conditioner blowing hot air after blend door actuator and rec damper servo motor replacement on Toyota Prius

Some Toyota Prius owners report experiencing issues with their air conditioning blowing hot air even after replacing the blend door actuator and rec damper servo motor. These problems may stem from a faulty or incorrectly installed blend door actuator, which is responsible for mixing air to achieve the desired outlet temperature. Additionally, issues with the rec damper servo motor can affect airflow and temperature control within the cabin. Some owners have found that a stuck open heater valve in the engine bay can prevent the AC system from functioning correctly, resulting in hot air circulation. Furthermore, a failure of the mode actuator may lead to only ambient air being discharged instead of temperature-controlled air. Lastly, incorrect calibration of the new components can also cause the system to malfunction, resulting in hot air being blown from the vents. It is recommended that owners consult a professional mechanic for a thorough inspection if these issues persist.